Hello Ken. I'm very excited for you at finding an old chinese garden marjet, and the relics are proof that there should be many more coins and other relics to be found. You might have heard, or read an old post of mine, but I did a bit of reseacrch in an area fairly remote, which happened to be the site of an old Chinese settlement. Two of the known roasting kilns have been documented, but a third is not known about. We found a third chinese oven. It was under a mound of dirt, and when I dug away at it, uncovered an old oven, intact, made of local stone, and the ash was still there, spilling out of the bottom exit hole, down the hillside! Above and to the side of this oven, were several building sites, one, I suspect, might have been a temple site (most likely made of old canvas, considereing the remote area, and small plot). After a few days detecting, we uncovered over 170 chinese coins and a late 1880's silver shuilling! What a hoard! Plus other relics like your opium bottles, tins, and opium pipe rests. I even found an old intact, round, brown glazed soy sauce pottery urn or jar. So after reading your post on the market garden, you're bound to find more stuff. I think if the ground has been ploughed, a lot of relics and coins may be bauried deeper. If your allowed to, why not concentrate on an area of say, 4x4ft square, dig down to a foot, remove the dirt, and run your detector over it, and the mound of dirt. You should pick up more targets. Then it's just a matter of working the ground, bit by bit, like that, and replacing the dirt. I've worked ground like this before, but not so deep, and reaped the rewards for the effort. Happy hunting!
Golden
